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  <title>Retrieves a node specified by index</title>

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  <h1 class="refname">DOMNamedNodeMap::item</h1>
  <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">DOMNamedNodeMap::item</span> &mdash; <span class="dc-title">Retrieves a node specified by index</span></p>

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 <div class="refsect1 description" id="refsect1-domnamednodemap.item-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <span class="methodname"><strong>DOMNamedNodeMap::item</strong></span>
    ( <span class="methodparam"><span class="type">int</span> <code class="parameter">$index</code></span>
   )</div>

  <p class="para rdfs-comment">
   Retrieves a node specified by <em><code class="parameter">index</code></em> within the 
   <a href="class.domnamednodemap.html" class="classname">DOMNamedNodeMap</a> object.
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-domnamednodemap.item-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">index</code></em></dt>

     <dd>

      <p class="para">
       Index into this map.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-domnamednodemap.item-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   The node at the <em><code class="parameter">index</code></em>th position in the map, or <strong><code>NULL</code></strong>
   if that is not a valid index (greater than or equal to the number of nodes 
   in this map).
  </p>
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